WordPress HTML Forms Plugin <= 1.3.28 is vulnerable to Cross Site Scripting (XSS)

published 2023-12-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-55569

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits: 0; none known

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ibericode HTML Forms allows Stored XSS.This issue affects HTML Forms: from n/a through 1.3.28.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 23 mo ago (2024-11-12)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
NVD	3.1	4.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

ibericode HTML Forms

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/vulnerability/html-forms/wordpress-html-forms-plugin-1-3-28-cross-site-scripting-xss-vulnerability?_
vdb-entry, third-party-advisory

Sources

CVE List CVE-2023-50836
NVD CVE-2023-50836

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary